I'm trying to get some data out of GA but what I'm seeing makes no sense. I'm looking at the Pageviews number over 6 months for part of a site.
So, Behaviour > Site Content > All Pages then apply a filter to view all pages in a folder. That gives 482,000.
When I apply any second dimension to split by traffic type I get an increase of 136,000!
- If I then apply 'Default Channel Grouping' I get 618,000.
- If I apply 'Source' or 'Source/Medium' I get 618,000 (slight difference <50).
- If I apply 'Traffic Type' I get 618,000 (again, slight difference <50)
The 'Unique Pageviews' also increases by 16,000 - from 252,000 to 268,000, with slight variations again <50.
There is a big a self-referral problem, but I can't see how that would skew the data here. The total of all Pageviews should be the same as the total for all Pageviews organised by type, surely!
Can anyone help me understand why the figures are so radically different when I split the data into Pageviews by traffic type?